Suppose you ran the following regression and found this statistically significant result: AGE = 120 + -4*HEALTH where AGE is how old someone is and HEALTH is a rating on how healthy they are, from 1 (very unhealthy) to 20 (very healthy). You realize you have it backwards: age causes health, not health causes age. What should the new equation be? 1 HEALTH = -30 + -0.25*AGE 2 It is impossible
Suppose you ran the following regression and found this statistically significant result: AGE = 120 + -4*HEALTH where AGE is how old someone is and HEALTH is a rating on how healthy they are, from 1 (very unhealthy) to 20 (very healthy). You realize you have it backwards: age causes health, not health causes age. What should the new equation be? 1 HEALTH = -30 + -0.25*AGE 2 It is impossible
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Suppose you ran the following regression and found this statistically significant result:
AGE = 120 + -4*HEALTH
where AGE is how old someone is and HEALTH is a rating on how healthy they are, from 1 (very unhealthy) to 20 (very healthy). You realize you have it backwards: age causes health, not health causes age. What should the new equation be?
1 |
HEALTH = -30 + -0.25*AGE |
|
2 |
It is impossible to tell without re-running the regression. |
|
3 |
HEALTH = 120 + -4*AGE |
|
4 |
HEALTH = -30 + 0.25*AGE |
|
5 |
HEALTH = 30 + -0.25*AGE |
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